CVE-2023-42453

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Summary

CVECVE-2023-42453
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-09-27 15:19:00 UTC
Updated2024-01-07 11:15:00 UTC
DescriptionSynapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

Risk And Classification

Problem Types: CWE-285

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 37 All All All
Operating System Fedoraproject Fedora 38 All All All
Application Matrix Synapse All All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 39 Update: matrix-synapse-1.94.0-2.fc39 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
security.gentoo.org/glsa/202401-12 security.gentoo.org
[SECURITY] Fedora 37 Update: matrix-synapse-1.80.0-6.fc37 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
[SECURITY] Fedora 38 Update: matrix-synapse-1.93.0-2.fc38 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
Additional validation of receipts by clokep · Pull Request #16327 · matrix-org/synapse · GitHub MISC github.com
Improper validation of receipts allows forged read receipts · Advisory · matrix-org/synapse · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 284585 Fedora Security Update for matrix (FEDORA-2023-5d980e6aaf)
  • 284586 Fedora Security Update for matrix (FEDORA-2023-84ee781688)
  • 285204 Fedora Security Update for matrix (FEDORA-2023-4d4c73a8f0)
  • 503363 Alpine Linux Security Update for synapse
  • 506255 Alpine Linux Security Update for synapse
  • 710826 Gentoo Linux Synapse Multiple Vulnerabilities (GLSA 202401-12)
  • 995440 Python (Pip) Security Update for matrix-synapse (GHSA-7565-cq32-vx2x)
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